"WardsSci000635"

Measure forces in friction, simple harmonic motion, impact in collisions, or centripetal force.

Study Newton's third law.

Inexpensive data collection direct to any TI-Nspire® handheld or TI-84 Plus graphing calculator.

Electronic electroscope to obtain quantitative measurements of charge.

The CO₂ gas sensor measures gaseous carbon dioxide.

Replacement package of 100 electrodes.

Measure electrical signals from muscle contractions, or make EKG tracings and surface EMG recordings.

General-purpose pH Sensors can be used across disciplines, with applications in chemistry, biology, middle school science, and environmental science.

Measure the concentration of nitrate in aqueous samples.

Perform accurate, automatic titrations by counting drops of titrant.

Measure the concentration of ethanol in air above an aqueous sample.

Easily quantify voltage, current, power, and energy output of small wind turbines and solar panels.

You can make fast, accurate measurements of dissolved oxygen concentration in water samples using our Dissolved Oxygen Sensor.

•Range of 0 to 14 mg/L (ppm) of dissolved oxygen.

•Built-in temperature compensation, which means you can do your calibrations in the lab, and then make measurements outdoors without having to recalibrate.

•Fast response time, reaching 95% of full reading in 30 seconds.

•Great for biology, chemistry, ecology, or integrated science courses.

Disposable caps with pre-fit membranes allow you to quickly and conveniently change membranes. An extra membrane cap is included with each probe.

Calibration is easy with this sensor. Simply place the electrode in the zero-oxygen solution provided with the probe for the 0% calibration point. For the 100% calibration point, place the electrode in air (or better yet, in water-saturated air, using the provided calibration bottle). The probe can be calibrated in any units you choose: % dissolved oxygen, mg/L, or ppm dissolved oxygen.

The DO-DIN and DO-BTA include the dissolved oxygen probe, zero-oxygen solution, extra membrane cap, a 100% calibration bottle, electrode filling solution, and a probe information booklet.

Secure your Go Direct® sensors for field work.

Charge and store up to four Go Direct® Sensor Carts.